Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
asian integration » urban integration, american integration, spatial integration
chain irrigation » change irrigation, basin irrigation, chain integration
supply asian » supply side, supply asset, supply urban
systems. » system.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply asian integration efforts. ) or ( supply chain irrigation systems. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply asian integration efforts. ) OR ( supply chain irrigation systems. )).
• Adding a wildcard symbol may retrieve word variants: (( supply asian integration efforts. ) or ( supply chain irrigation systems. ))*.